Cremona 群中小单群的共轭类
代数几何
2022-07-22 v2
摘要
我们考虑了可数多个定义在上的三维-del Pezzo 曲面纤维化。据猜想,除了两个族之外,它们都是非理性的,其中一个族是 del Pezzo 曲面与的直积。我们证明了另一个模型在-等变意义下双有理等价于。基于 Prokhorov 的一项结果,我们证明了它们作为 Cremona 群的子群是不共轭的。
引用
@article{arxiv.1310.5548,
title = {On conjugacy classes of the Klein simple group in Cremona group},
author = {Hamid Abban},
journal= {arXiv preprint arXiv:1310.5548},
year = {2022}
}
备注
The results and content of the older version has been sharpened. Some parts have been published separately, and this is an update for section 3 in V1. Final version, to appear in Glasgow Math Journal